Blind test - can you tell the class D amp from original loop in ABX

[Triliza]

Yes it is not, but this amplifier has frequency response independent of load impedance. There is just some small dependence of distortion on load impedance.
I would not be able to survive if speaker next to me would play at the level used in the test. And my complex dummy load would also not survive, so the resistor was the only chance and quite representative in case of this amp. This would not be the same if it was the TPA32XX or similar amp, however TPA was tested into dummy load earlier and posted here. But at much lower power.

Not sure if the answer is already on the quote above, but can something similar be done with Aiyima a07, I have got one of those with the included 32V/5A supply, would like to see how it does in a ABX test like this one?

 

[pma]

Not sure if the answer is already on the quote above, but can something similar be done with Aiyima a07, I have got one of those with the included 32V/5A supply, would like to see how it does in a ABX test like this one?

Hi Triliza, thank you, I posted a similar test here in January 2021, here is the link:

Class D AIYIMA A07 amplifier (ABX) listening test

I was curious if inserting AIYIMA A07 TPA3255 class D amplifier in the D/A – A/D loop would be audible. I tested the amp in another thread and found that the frequency response depends, at higher frequencies, on speaker complex impedance, due to amplifier's output LC filter - that is outside...

www.audiosciencereview.com

BTW the pkmetrics DeltaWave result of that A07 test was much worse than the UcD180 in this test. Just added the plots to A07 test.